From 5fcf3b792508fe7cd74ccdde881810411eaf352b Mon Sep 17 00:00:00 2001 From: Richard Muragijimana Date: Tue, 20 Apr 2021 04:40:19 +0200 Subject: [PATCH] null safety suppurt and test on different platforms --- tip_003_popup_card/lib/add_todo_button.dart | 4 +- tip_003_popup_card/lib/custom_rect_tween.dart | 12 +- tip_003_popup_card/lib/hero_dialog_route.dart | 4 +- tip_003_popup_card/lib/main.dart | 40 +-- tip_003_popup_card/lib/models.dart | 10 +- tip_003_popup_card/pubspec.lock | 38 +-- tip_003_popup_card/pubspec.yaml | 2 +- tip_003_popup_card/test/widget_test.dart | 30 +++ tip_003_popup_card/web/favicon.png | Bin 0 -> 917 bytes tip_003_popup_card/web/icons/Icon-192.png | Bin 0 -> 5292 bytes tip_003_popup_card/web/icons/Icon-512.png | Bin 0 -> 8252 bytes tip_003_popup_card/web/index.html | 45 ++++ tip_003_popup_card/web/manifest.json | 23 ++ tip_003_popup_card/windows/.gitignore | 17 ++ tip_003_popup_card/windows/CMakeLists.txt | 95 +++++++ .../windows/flutter/CMakeLists.txt | 103 ++++++++ .../flutter/generated_plugin_registrant.cc | 9 + .../flutter/generated_plugin_registrant.h | 13 + .../windows/flutter/generated_plugins.cmake | 15 ++ .../windows/runner/CMakeLists.txt | 18 ++ tip_003_popup_card/windows/runner/Runner.rc | 121 +++++++++ .../windows/runner/flutter_window.cpp | 64 +++++ .../windows/runner/flutter_window.h | 39 +++ tip_003_popup_card/windows/runner/main.cpp | 42 +++ tip_003_popup_card/windows/runner/resource.h | 16 ++ .../windows/runner/resources/app_icon.ico | Bin 0 -> 33772 bytes .../windows/runner/run_loop.cpp | 66 +++++ tip_003_popup_card/windows/runner/run_loop.h | 40 +++ .../windows/runner/runner.exe.manifest | 20 ++ tip_003_popup_card/windows/runner/utils.cpp | 64 +++++ tip_003_popup_card/windows/runner/utils.h | 19 ++ .../windows/runner/win32_window.cpp | 245 ++++++++++++++++++ .../windows/runner/win32_window.h | 98 +++++++ 33 files changed, 1257 insertions(+), 55 deletions(-) create mode 100644 tip_003_popup_card/test/widget_test.dart create mode 100644 tip_003_popup_card/web/favicon.png create mode 100644 tip_003_popup_card/web/icons/Icon-192.png create mode 100644 tip_003_popup_card/web/icons/Icon-512.png create mode 100644 tip_003_popup_card/web/index.html create mode 100644 tip_003_popup_card/web/manifest.json create mode 100644 tip_003_popup_card/windows/.gitignore create mode 100644 tip_003_popup_card/windows/CMakeLists.txt create mode 100644 tip_003_popup_card/windows/flutter/CMakeLists.txt create mode 100644 tip_003_popup_card/windows/flutter/generated_plugin_registrant.cc create mode 100644 tip_003_popup_card/windows/flutter/generated_plugin_registrant.h create mode 100644 tip_003_popup_card/windows/flutter/generated_plugins.cmake create mode 100644 tip_003_popup_card/windows/runner/CMakeLists.txt create mode 100644 tip_003_popup_card/windows/runner/Runner.rc create mode 100644 tip_003_popup_card/windows/runner/flutter_window.cpp create mode 100644 tip_003_popup_card/windows/runner/flutter_window.h create mode 100644 tip_003_popup_card/windows/runner/main.cpp create mode 100644 tip_003_popup_card/windows/runner/resource.h create mode 100644 tip_003_popup_card/windows/runner/resources/app_icon.ico create mode 100644 tip_003_popup_card/windows/runner/run_loop.cpp create mode 100644 tip_003_popup_card/windows/runner/run_loop.h create mode 100644 tip_003_popup_card/windows/runner/runner.exe.manifest create mode 100644 tip_003_popup_card/windows/runner/utils.cpp create mode 100644 tip_003_popup_card/windows/runner/utils.h create mode 100644 tip_003_popup_card/windows/runner/win32_window.cpp create mode 100644 tip_003_popup_card/windows/runner/win32_window.h diff --git a/tip_003_popup_card/lib/add_todo_button.dart b/tip_003_popup_card/lib/add_todo_button.dart index 42f39bc..c3f5a03 100644 --- a/tip_003_popup_card/lib/add_todo_button.dart +++ b/tip_003_popup_card/lib/add_todo_button.dart @@ -13,7 +13,7 @@ import 'hero_dialog_route.dart'; /// {@endtemplate} class AddTodoButton extends StatelessWidget { /// {@macro add_todo_button} - const AddTodoButton({Key key}) : super(key: key); + const AddTodoButton({Key? key}) : super(key: key); @override Widget build(BuildContext context) { @@ -57,7 +57,7 @@ const String _heroAddTodo = 'add-todo-hero'; /// {@endtemplate} class _AddTodoPopupCard extends StatelessWidget { /// {@macro add_todo_popup_card} - const _AddTodoPopupCard({Key key}) : super(key: key); + const _AddTodoPopupCard({Key? key}) : super(key: key); @override Widget build(BuildContext context) { diff --git a/tip_003_popup_card/lib/custom_rect_tween.dart b/tip_003_popup_card/lib/custom_rect_tween.dart index 18f0243..dbef7a4 100644 --- a/tip_003_popup_card/lib/custom_rect_tween.dart +++ b/tip_003_popup_card/lib/custom_rect_tween.dart @@ -10,18 +10,18 @@ import 'package:flutter/widgets.dart'; class CustomRectTween extends RectTween { /// {@macro custom_rect_tween} CustomRectTween({ - @required Rect begin, - @required Rect end, + required Rect? begin, + required Rect? end, }) : super(begin: begin, end: end); @override Rect lerp(double t) { final elasticCurveValue = Curves.easeOut.transform(t); return Rect.fromLTRB( - lerpDouble(begin.left, end.left, elasticCurveValue), - lerpDouble(begin.top, end.top, elasticCurveValue), - lerpDouble(begin.right, end.right, elasticCurveValue), - lerpDouble(begin.bottom, end.bottom, elasticCurveValue), + lerpDouble(begin!.left, end!.left, elasticCurveValue)!, + lerpDouble(begin!.top, end!.top, elasticCurveValue)!, + lerpDouble(begin!.right, end!.right, elasticCurveValue)!, + lerpDouble(begin!.bottom, end!.bottom, elasticCurveValue)!, ); } } diff --git a/tip_003_popup_card/lib/hero_dialog_route.dart b/tip_003_popup_card/lib/hero_dialog_route.dart index 057488f..ac47237 100644 --- a/tip_003_popup_card/lib/hero_dialog_route.dart +++ b/tip_003_popup_card/lib/hero_dialog_route.dart @@ -10,8 +10,8 @@ import 'package:flutter/material.dart'; class HeroDialogRoute extends PageRoute { /// {@macro hero_dialog_route} HeroDialogRoute({ - @required WidgetBuilder builder, - RouteSettings settings, + required WidgetBuilder builder, + RouteSettings? settings, bool fullscreenDialog = false, }) : _builder = builder, super(settings: settings, fullscreenDialog: fullscreenDialog); diff --git a/tip_003_popup_card/lib/main.dart b/tip_003_popup_card/lib/main.dart index b0da1b4..9404698 100644 --- a/tip_003_popup_card/lib/main.dart +++ b/tip_003_popup_card/lib/main.dart @@ -33,7 +33,7 @@ class MyApp extends StatelessWidget { class Home extends StatelessWidget { /// {@macro home} const Home({ - Key key, + Key? key, }) : super(key: key); @override @@ -74,8 +74,8 @@ class Home extends StatelessWidget { /// {@endtemplate} class _TodoListContent extends StatelessWidget { const _TodoListContent({ - Key key, - @required this.todos, + Key? key, + required this.todos, }) : super(key: key); final List todos; @@ -101,8 +101,8 @@ class _TodoListContent extends StatelessWidget { class _TodoCard extends StatelessWidget { /// {@macro todo_card} const _TodoCard({ - Key key, - @required this.todo, + Key? key, + required this.todo, }) : super(key: key); final Todo todo; @@ -157,8 +157,8 @@ class _TodoCard extends StatelessWidget { class _TodoTitle extends StatelessWidget { /// {@macro todo_title} const _TodoTitle({ - Key key, - @required this.title, + Key? key, + required this.title, }) : super(key: key); final String title; @@ -178,13 +178,13 @@ class _TodoTitle extends StatelessWidget { /// Activated from [_TodoCard]. /// {@endtemplate} class _TodoPopupCard extends StatelessWidget { - const _TodoPopupCard({Key key, this.todo}) : super(key: key); - final Todo todo; + const _TodoPopupCard({Key? key, this.todo}) : super(key: key); + final Todo? todo; @override Widget build(BuildContext context) { return Hero( - tag: todo.id, + tag: todo!.id, createRectTween: (begin, end) { return CustomRectTween(begin: begin, end: end); }, @@ -200,13 +200,13 @@ class _TodoPopupCard extends StatelessWidget { child: Column( mainAxisSize: MainAxisSize.min, children: [ - _TodoTitle(title: todo.description), + _TodoTitle(title: todo!.description), const SizedBox( height: 8, ), - if (todo.items != null) ...[ + if (todo!.items != null) ...[ const Divider(), - _TodoItemsBox(items: todo.items), + _TodoItemsBox(items: todo!.items), ], Container( margin: const EdgeInsets.all(8), @@ -242,17 +242,17 @@ class _TodoPopupCard extends StatelessWidget { class _TodoItemsBox extends StatelessWidget { /// {@macro todo_items_box} const _TodoItemsBox({ - Key key, - @required this.items, + Key? key, + required this.items, }) : super(key: key); - final List items; + final List? items; @override Widget build(BuildContext context) { return Column( children: [ - for (final item in items) _TodoItemTile(item: item), + for (final item in items!) _TodoItemTile(item: item), ], ); } @@ -264,8 +264,8 @@ class _TodoItemsBox extends StatelessWidget { class _TodoItemTile extends StatefulWidget { /// {@macro todo_item_template} const _TodoItemTile({ - Key key, - @required this.item, + Key? key, + required this.item, }) : super(key: key); final Item item; @@ -275,7 +275,7 @@ class _TodoItemTile extends StatefulWidget { } class _TodoItemTileState extends State<_TodoItemTile> { - void _onChanged(bool val) { + void _onChanged(bool? val) { setState(() { widget.item.completed = val; }); diff --git a/tip_003_popup_card/lib/models.dart b/tip_003_popup_card/lib/models.dart index b85e841..3626150 100644 --- a/tip_003_popup_card/lib/models.dart +++ b/tip_003_popup_card/lib/models.dart @@ -7,8 +7,8 @@ import 'package:meta/meta.dart'; class Todo { /// {@macro todo} const Todo({ - @required this.id, - @required this.description, + required this.id, + required this.description, this.items, }); @@ -19,7 +19,7 @@ class Todo { final String description; /// A list of [Item]s for sub-todos. - final List items; + final List? items; } /// {@template item} @@ -28,7 +28,7 @@ class Todo { class Item { /// {@macro item} Item({ - @required this.id, + required this.id, this.description = '', this.completed = false, }); @@ -40,5 +40,5 @@ class Item { final String description; /// Indicates if this item has been completed or not. - bool completed; + bool? completed; } diff --git a/tip_003_popup_card/pubspec.lock b/tip_003_popup_card/pubspec.lock index d663ec2..6413bab 100644 --- a/tip_003_popup_card/pubspec.lock +++ b/tip_003_popup_card/pubspec.lock @@ -7,42 +7,42 @@ packages: name: async url: "https://pub.dartlang.org" source: hosted - version: "2.5.0-nullsafety.1" + version: "2.5.0" boolean_selector: dependency: transitive description: name: boolean_selector url: "https://pub.dartlang.org" source: hosted - version: "2.1.0-nullsafety.1" + version: "2.1.0" characters: dependency: transitive description: name: characters url: "https://pub.dartlang.org" source: hosted - version: "1.1.0-nullsafety.3" + version: "1.1.0" charcode: dependency: transitive description: name: charcode url: "https://pub.dartlang.org" source: hosted - version: "1.2.0-nullsafety.1" + version: "1.2.0" clock: dependency: transitive description: name: clock url: "https://pub.dartlang.org" source: hosted - version: "1.1.0-nullsafety.1" + version: "1.1.0" collection: dependency: transitive description: name: collection url: "https://pub.dartlang.org" source: hosted - version: "1.15.0-nullsafety.3" + version: "1.15.0" cupertino_icons: dependency: "direct main" description: @@ -56,7 +56,7 @@ packages: name: fake_async url: "https://pub.dartlang.org" source: hosted - version: "1.2.0-nullsafety.1" + version: "1.2.0" flutter: dependency: "direct main" description: flutter @@ -80,21 +80,21 @@ packages: name: matcher url: "https://pub.dartlang.org" source: hosted - version: "0.12.10-nullsafety.1" + version: "0.12.10" meta: dependency: transitive description: name: meta url: "https://pub.dartlang.org" source: hosted - version: "1.3.0-nullsafety.3" + version: "1.3.0" path: dependency: transitive description: name: path url: "https://pub.dartlang.org" source: hosted - version: "1.8.0-nullsafety.1" + version: "1.8.0" pedantic: dependency: transitive description: @@ -113,56 +113,56 @@ packages: name: source_span url: "https://pub.dartlang.org" source: hosted - version: "1.8.0-nullsafety.2" + version: "1.8.0" stack_trace: dependency: transitive description: name: stack_trace url: "https://pub.dartlang.org" source: hosted - version: "1.10.0-nullsafety.1" + version: "1.10.0" stream_channel: dependency: transitive description: name: stream_channel url: "https://pub.dartlang.org" source: hosted - version: "2.1.0-nullsafety.1" + version: "2.1.0" string_scanner: dependency: transitive description: name: string_scanner url: "https://pub.dartlang.org" source: hosted - version: "1.1.0-nullsafety.1" + version: "1.1.0" term_glyph: dependency: transitive description: name: term_glyph url: "https://pub.dartlang.org" source: hosted - version: "1.2.0-nullsafety.1" + version: "1.2.0" test_api: dependency: transitive description: name: test_api url: "https://pub.dartlang.org" source: hosted - version: "0.2.19-nullsafety.2" + version: "0.2.19" typed_data: dependency: transitive description: name: typed_data url: "https://pub.dartlang.org" source: hosted - version: "1.3.0-nullsafety.3" + version: "1.3.0" vector_math: dependency: transitive description: name: vector_math url: "https://pub.dartlang.org" source: hosted - version: "2.1.0-nullsafety.3" + version: "2.1.0" very_good_analysis: dependency: "direct dev" description: @@ -171,5 +171,5 @@ packages: source: hosted version: "1.0.4" sdks: - dart: ">=2.10.0-110 <2.11.0" + dart: ">=2.12.0 <3.0.0" flutter: ">=1.17.0" diff --git a/tip_003_popup_card/pubspec.yaml b/tip_003_popup_card/pubspec.yaml index d577e47..8a3b7db 100644 --- a/tip_003_popup_card/pubspec.yaml +++ b/tip_003_popup_card/pubspec.yaml @@ -18,7 +18,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev version: 1.0.0+1 environment: - sdk: ">=2.7.0 <3.0.0" + sdk: '>=2.12.0 <3.0.0' dependencies: flutter: diff --git a/tip_003_popup_card/test/widget_test.dart b/tip_003_popup_card/test/widget_test.dart new file mode 100644 index 0000000..4bdcc10 --- /dev/null +++ b/tip_003_popup_card/test/widget_test.dart @@ -0,0 +1,30 @@ +// This is a basic Flutter widget test. +// +// To perform an interaction with a widget in your test, use the WidgetTester +// utility that Flutter provides. For example, you can send tap and scroll +// gestures. You can also use WidgetTester to find child widgets in the widget +// tree, read text, and verify that the values of widget properties are correct. + +import 'package:flutter/material.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import 'package:tip_003_popup_card/main.dart'; + +void main() { + testWidgets('Counter increments smoke test', (WidgetTester tester) async { + // Build our app and trigger a frame. + await tester.pumpWidget(MyApp()); + + // Verify that our counter starts at 0. + expect(find.text('0'), findsOneWidget); + expect(find.text('1'), findsNothing); + + // Tap the '+' icon and trigger a frame. + await tester.tap(find.byIcon(Icons.add)); + await tester.pump(); + + // Verify that our counter has incremented. + expect(find.text('0'), findsNothing); + expect(find.text('1'), findsOneWidget); + }); +} diff --git a/tip_003_popup_card/web/favicon.png b/tip_003_popup_card/web/favicon.png new file mode 100644 index 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+ "src": "icons/Icon-192.png", + "sizes": "192x192", + "type": "image/png" + }, + { + "src": "icons/Icon-512.png", + "sizes": "512x512", + "type": "image/png" + } + ] +} diff --git a/tip_003_popup_card/windows/.gitignore b/tip_003_popup_card/windows/.gitignore new file mode 100644 index 0000000..d492d0d --- /dev/null +++ b/tip_003_popup_card/windows/.gitignore @@ -0,0 +1,17 @@ +flutter/ephemeral/ + +# Visual Studio user-specific files. +*.suo +*.user +*.userosscache +*.sln.docstates + +# Visual Studio build-related files. +x64/ +x86/ + +# Visual Studio cache files +# files ending in .cache can be ignored +*.[Cc]ache +# but keep track of directories ending in .cache +!*.[Cc]ache/ diff --git a/tip_003_popup_card/windows/CMakeLists.txt b/tip_003_popup_card/windows/CMakeLists.txt new file mode 100644 index 0000000..1869444 --- /dev/null +++ b/tip_003_popup_card/windows/CMakeLists.txt @@ -0,0 +1,95 @@ +cmake_minimum_required(VERSION 3.15) +project(tip_003_popup_card LANGUAGES CXX) + +set(BINARY_NAME "tip_003_popup_card") + +cmake_policy(SET CMP0063 NEW) + +set(CMAKE_INSTALL_RPATH "$ORIGIN/lib") + +# Configure build options. +get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG) +if(IS_MULTICONFIG) + set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release" + CACHE STRING "" FORCE) +else() + if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES) + set(CMAKE_BUILD_TYPE "Debug" CACHE + STRING "Flutter build mode" FORCE) + set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS + "Debug" "Profile" "Release") + endif() +endif() + +set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}") +set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}") +set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}") +set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}") + +# Use Unicode for all projects. +add_definitions(-DUNICODE -D_UNICODE) + +# Compilation settings that should be applied to most targets. +function(APPLY_STANDARD_SETTINGS TARGET) + target_compile_features(${TARGET} PUBLIC cxx_std_17) + target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100") + target_compile_options(${TARGET} PRIVATE /EHsc) + target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0") + target_compile_definitions(${TARGET} PRIVATE "$<$:_DEBUG>") +endfunction() + +set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter") + +# Flutter library and tool build rules. +add_subdirectory(${FLUTTER_MANAGED_DIR}) + +# Application build +add_subdirectory("runner") + +# Generated plugin build rules, which manage building the plugins and adding +# them to the application. +include(flutter/generated_plugins.cmake) + + +# === Installation === +# Support files are copied into place next to the executable, so that it can +# run in place. This is done instead of making a separate bundle (as on Linux) +# so that building and running from within Visual Studio will work. +set(BUILD_BUNDLE_DIR "$") +# Make the "install" step default, as it's required to run. +set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1) +if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT) + set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE) +endif() + +set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data") +set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}") + +install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}" + COMPONENT Runtime) + +install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" + COMPONENT Runtime) + +install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}" + COMPONENT Runtime) + +if(PLUGIN_BUNDLED_LIBRARIES) + install(FILES "${PLUGIN_BUNDLED_LIBRARIES}" + DESTINATION "${INSTALL_BUNDLE_LIB_DIR}" + COMPONENT Runtime) +endif() + +# Fully re-copy the assets directory on each build to avoid having stale files +# from a previous install. +set(FLUTTER_ASSET_DIR_NAME "flutter_assets") +install(CODE " + file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\") + " COMPONENT Runtime) +install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}" + DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime) + +# Install the AOT library on non-Debug builds only. +install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" + CONFIGURATIONS Profile;Release + COMPONENT Runtime) diff --git a/tip_003_popup_card/windows/flutter/CMakeLists.txt b/tip_003_popup_card/windows/flutter/CMakeLists.txt new file mode 100644 index 0000000..b02c548 --- /dev/null +++ b/tip_003_popup_card/windows/flutter/CMakeLists.txt @@ -0,0 +1,103 @@ +cmake_minimum_required(VERSION 3.15) + +set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral") + +# Configuration provided via flutter tool. +include(${EPHEMERAL_DIR}/generated_config.cmake) + +# TODO: Move the rest of this into files in ephemeral. See +# https://github.com/flutter/flutter/issues/57146. +set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper") + +# === Flutter Library === +set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll") + +# Published to parent scope for install step. +set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE) +set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE) +set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE) +set(AOT_LIBRARY "${PROJECT_DIR}/build/windows/app.so" PARENT_SCOPE) + +list(APPEND FLUTTER_LIBRARY_HEADERS + "flutter_export.h" + "flutter_windows.h" + "flutter_messenger.h" + "flutter_plugin_registrar.h" + "flutter_texture_registrar.h" +) +list(TRANSFORM FLUTTER_LIBRARY_HEADERS PREPEND "${EPHEMERAL_DIR}/") +add_library(flutter INTERFACE) +target_include_directories(flutter INTERFACE + "${EPHEMERAL_DIR}" +) +target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}.lib") +add_dependencies(flutter flutter_assemble) + +# === Wrapper === +list(APPEND CPP_WRAPPER_SOURCES_CORE + "core_implementations.cc" + "standard_codec.cc" +) +list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/") +list(APPEND CPP_WRAPPER_SOURCES_PLUGIN + "plugin_registrar.cc" +) +list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/") +list(APPEND CPP_WRAPPER_SOURCES_APP + "flutter_engine.cc" + "flutter_view_controller.cc" +) +list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/") + +# Wrapper sources needed for a plugin. +add_library(flutter_wrapper_plugin STATIC + ${CPP_WRAPPER_SOURCES_CORE} + ${CPP_WRAPPER_SOURCES_PLUGIN} +) +apply_standard_settings(flutter_wrapper_plugin) +set_target_properties(flutter_wrapper_plugin PROPERTIES + POSITION_INDEPENDENT_CODE ON) +set_target_properties(flutter_wrapper_plugin PROPERTIES + CXX_VISIBILITY_PRESET hidden) +target_link_libraries(flutter_wrapper_plugin PUBLIC flutter) +target_include_directories(flutter_wrapper_plugin PUBLIC + "${WRAPPER_ROOT}/include" +) +add_dependencies(flutter_wrapper_plugin flutter_assemble) + +# Wrapper sources needed for the runner. +add_library(flutter_wrapper_app STATIC + ${CPP_WRAPPER_SOURCES_CORE} + ${CPP_WRAPPER_SOURCES_APP} +) +apply_standard_settings(flutter_wrapper_app) +target_link_libraries(flutter_wrapper_app PUBLIC flutter) +target_include_directories(flutter_wrapper_app PUBLIC + "${WRAPPER_ROOT}/include" +) +add_dependencies(flutter_wrapper_app flutter_assemble) + +# === Flutter tool backend === +# _phony_ is a non-existent file to force this command to run every time, +# since currently there's no way to get a full input/output list from the +# flutter tool. +set(PHONY_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/_phony_") +set_source_files_properties("${PHONY_OUTPUT}" PROPERTIES SYMBOLIC TRUE) +add_custom_command( + OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS} + ${CPP_WRAPPER_SOURCES_CORE} ${CPP_WRAPPER_SOURCES_PLUGIN} + ${CPP_WRAPPER_SOURCES_APP} + ${PHONY_OUTPUT} + COMMAND ${CMAKE_COMMAND} -E env + ${FLUTTER_TOOL_ENVIRONMENT} + "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat" + windows-x64 $ + VERBATIM +) +add_custom_target(flutter_assemble DEPENDS + "${FLUTTER_LIBRARY}" + ${FLUTTER_LIBRARY_HEADERS} + ${CPP_WRAPPER_SOURCES_CORE} + ${CPP_WRAPPER_SOURCES_PLUGIN} + ${CPP_WRAPPER_SOURCES_APP} +) diff --git a/tip_003_popup_card/windows/flutter/generated_plugin_registrant.cc b/tip_003_popup_card/windows/flutter/generated_plugin_registrant.cc new file mode 100644 index 0000000..4bfa0f3 --- /dev/null +++ b/tip_003_popup_card/windows/flutter/generated_plugin_registrant.cc @@ -0,0 +1,9 @@ +// +// Generated file. Do not edit. +// + +#include "generated_plugin_registrant.h" + + +void RegisterPlugins(flutter::PluginRegistry* registry) { +} diff --git a/tip_003_popup_card/windows/flutter/generated_plugin_registrant.h b/tip_003_popup_card/windows/flutter/generated_plugin_registrant.h new file mode 100644 index 0000000..9846246 --- /dev/null +++ b/tip_003_popup_card/windows/flutter/generated_plugin_registrant.h @@ -0,0 +1,13 @@ +// +// Generated file. Do not edit. +// + +#ifndef GENERATED_PLUGIN_REGISTRANT_ +#define GENERATED_PLUGIN_REGISTRANT_ + +#include + +// Registers Flutter plugins. +void RegisterPlugins(flutter::PluginRegistry* registry); + +#endif // GENERATED_PLUGIN_REGISTRANT_ diff --git a/tip_003_popup_card/windows/flutter/generated_plugins.cmake b/tip_003_popup_card/windows/flutter/generated_plugins.cmake new file mode 100644 index 0000000..4d10c25 --- /dev/null +++ b/tip_003_popup_card/windows/flutter/generated_plugins.cmake @@ -0,0 +1,15 @@ +# +# Generated file, do not edit. +# + +list(APPEND FLUTTER_PLUGIN_LIST +) + +set(PLUGIN_BUNDLED_LIBRARIES) + +foreach(plugin ${FLUTTER_PLUGIN_LIST}) + add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/windows plugins/${plugin}) + target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin) + list(APPEND PLUGIN_BUNDLED_LIBRARIES $) + list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries}) +endforeach(plugin) diff --git a/tip_003_popup_card/windows/runner/CMakeLists.txt b/tip_003_popup_card/windows/runner/CMakeLists.txt new file mode 100644 index 0000000..977e38b --- /dev/null +++ b/tip_003_popup_card/windows/runner/CMakeLists.txt @@ -0,0 +1,18 @@ +cmake_minimum_required(VERSION 3.15) +project(runner LANGUAGES CXX) + +add_executable(${BINARY_NAME} WIN32 + "flutter_window.cpp" + "main.cpp" + "run_loop.cpp" + "utils.cpp" + "win32_window.cpp" + "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc" + "Runner.rc" + "runner.exe.manifest" +) +apply_standard_settings(${BINARY_NAME}) +target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX") +target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app) +target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}") +add_dependencies(${BINARY_NAME} flutter_assemble) diff --git a/tip_003_popup_card/windows/runner/Runner.rc b/tip_003_popup_card/windows/runner/Runner.rc new file mode 100644 index 0000000..84634fc --- /dev/null +++ b/tip_003_popup_card/windows/runner/Runner.rc @@ -0,0 +1,121 @@ +// Microsoft Visual C++ generated resource script. +// +#pragma code_page(65001) +#include "resource.h" + +#define APSTUDIO_READONLY_SYMBOLS +///////////////////////////////////////////////////////////////////////////// +// +// Generated from the TEXTINCLUDE 2 resource. +// +#include "winres.h" + +///////////////////////////////////////////////////////////////////////////// +#undef APSTUDIO_READONLY_SYMBOLS + +///////////////////////////////////////////////////////////////////////////// +// English (United States) resources + +#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU) +LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US + +#ifdef APSTUDIO_INVOKED +///////////////////////////////////////////////////////////////////////////// +// +// TEXTINCLUDE +// + +1 TEXTINCLUDE +BEGIN + "resource.h\0" +END + +2 TEXTINCLUDE +BEGIN + "#include ""winres.h""\r\n" + "\0" +END + +3 TEXTINCLUDE +BEGIN + "\r\n" + "\0" +END + +#endif // APSTUDIO_INVOKED + + +///////////////////////////////////////////////////////////////////////////// +// +// Icon +// + +// Icon with lowest ID value placed first to ensure application icon +// remains consistent on all systems. +IDI_APP_ICON ICON "resources\\app_icon.ico" + + +///////////////////////////////////////////////////////////////////////////// +// +// Version +// + +#ifdef FLUTTER_BUILD_NUMBER +#define VERSION_AS_NUMBER FLUTTER_BUILD_NUMBER +#else +#define VERSION_AS_NUMBER 1,0,0 +#endif + +#ifdef FLUTTER_BUILD_NAME +#define VERSION_AS_STRING #FLUTTER_BUILD_NAME +#else +#define VERSION_AS_STRING "1.0.0" +#endif + +VS_VERSION_INFO VERSIONINFO + FILEVERSION VERSION_AS_NUMBER + PRODUCTVERSION VERSION_AS_NUMBER + FILEFLAGSMASK VS_FFI_FILEFLAGSMASK +#ifdef _DEBUG + FILEFLAGS VS_FF_DEBUG +#else + FILEFLAGS 0x0L +#endif + FILEOS VOS__WINDOWS32 + FILETYPE VFT_APP + FILESUBTYPE 0x0L +BEGIN + BLOCK "StringFileInfo" + BEGIN + BLOCK "040904e4" + BEGIN + VALUE "CompanyName", "com.example" "\0" + VALUE "FileDescription", "A new Flutter project." "\0" + VALUE "FileVersion", VERSION_AS_STRING "\0" + VALUE "InternalName", "tip_003_popup_card" "\0" + VALUE "LegalCopyright", "Copyright (C) 2021 com.example. All rights reserved." "\0" + VALUE "OriginalFilename", "tip_003_popup_card.exe" "\0" + VALUE "ProductName", "tip_003_popup_card" "\0" + VALUE "ProductVersion", VERSION_AS_STRING "\0" + END + END + BLOCK "VarFileInfo" + BEGIN + VALUE "Translation", 0x409, 1252 + END +END + +#endif // English (United States) resources +///////////////////////////////////////////////////////////////////////////// + + + +#ifndef APSTUDIO_INVOKED +///////////////////////////////////////////////////////////////////////////// +// +// Generated from the TEXTINCLUDE 3 resource. +// + + +///////////////////////////////////////////////////////////////////////////// +#endif // not APSTUDIO_INVOKED diff --git a/tip_003_popup_card/windows/runner/flutter_window.cpp b/tip_003_popup_card/windows/runner/flutter_window.cpp new file mode 100644 index 0000000..c422723 --- /dev/null +++ b/tip_003_popup_card/windows/runner/flutter_window.cpp @@ -0,0 +1,64 @@ +#include "flutter_window.h" + +#include + +#include "flutter/generated_plugin_registrant.h" + +FlutterWindow::FlutterWindow(RunLoop* run_loop, + const flutter::DartProject& project) + : run_loop_(run_loop), project_(project) {} + +FlutterWindow::~FlutterWindow() {} + +bool FlutterWindow::OnCreate() { + if (!Win32Window::OnCreate()) { + return false; + } + + RECT frame = GetClientArea(); + + // The size here must match the window dimensions to avoid unnecessary surface + // creation / destruction in the startup path. + flutter_controller_ = std::make_unique( + frame.right - frame.left, frame.bottom - frame.top, project_); + // Ensure that basic setup of the controller was successful. + if (!flutter_controller_->engine() || !flutter_controller_->view()) { + return false; + } + RegisterPlugins(flutter_controller_->engine()); + run_loop_->RegisterFlutterInstance(flutter_controller_->engine()); + SetChildContent(flutter_controller_->view()->GetNativeWindow()); + return true; +} + +void FlutterWindow::OnDestroy() { + if (flutter_controller_) { + run_loop_->UnregisterFlutterInstance(flutter_controller_->engine()); + flutter_controller_ = nullptr; + } + + Win32Window::OnDestroy(); +} + +LRESULT +FlutterWindow::MessageHandler(HWND hwnd, UINT const message, + WPARAM const wparam, + LPARAM const lparam) noexcept { + // Give Flutter, including plugins, an opporutunity to handle window messages. + if (flutter_controller_) { + std::optional result = + flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam, + lparam); + if (result) { + return *result; + } + } + + switch (message) { + case WM_FONTCHANGE: + flutter_controller_->engine()->ReloadSystemFonts(); + break; + } + + return Win32Window::MessageHandler(hwnd, message, wparam, lparam); +} diff --git a/tip_003_popup_card/windows/runner/flutter_window.h b/tip_003_popup_card/windows/runner/flutter_window.h new file mode 100644 index 0000000..b663ddd --- /dev/null +++ b/tip_003_popup_card/windows/runner/flutter_window.h @@ -0,0 +1,39 @@ +#ifndef RUNNER_FLUTTER_WINDOW_H_ +#define RUNNER_FLUTTER_WINDOW_H_ + +#include +#include + +#include + +#include "run_loop.h" +#include "win32_window.h" + +// A window that does nothing but host a Flutter view. +class FlutterWindow : public Win32Window { + public: + // Creates a new FlutterWindow driven by the |run_loop|, hosting a + // Flutter view running |project|. + explicit FlutterWindow(RunLoop* run_loop, + const flutter::DartProject& project); + virtual ~FlutterWindow(); + + protected: + // Win32Window: + bool OnCreate() override; + void OnDestroy() override; + LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam, + LPARAM const lparam) noexcept override; + + private: + // The run loop driving events for this window. + RunLoop* run_loop_; + + // The project to run. + flutter::DartProject project_; + + // The Flutter instance hosted by this window. + std::unique_ptr flutter_controller_; +}; + +#endif // RUNNER_FLUTTER_WINDOW_H_ diff --git a/tip_003_popup_card/windows/runner/main.cpp b/tip_003_popup_card/windows/runner/main.cpp new file mode 100644 index 0000000..9d24e6f --- /dev/null +++ b/tip_003_popup_card/windows/runner/main.cpp @@ -0,0 +1,42 @@ +#include +#include +#include + +#include "flutter_window.h" +#include "run_loop.h" +#include "utils.h" + +int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev, + _In_ wchar_t *command_line, _In_ int show_command) { + // Attach to console when present (e.g., 'flutter run') or create a + // new console when running with a debugger. + if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) { + CreateAndAttachConsole(); + } + + // Initialize COM, so that it is available for use in the library and/or + // plugins. + ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED); + + RunLoop run_loop; + + flutter::DartProject project(L"data"); + + std::vector command_line_arguments = + GetCommandLineArguments(); + + project.set_dart_entrypoint_arguments(std::move(command_line_arguments)); + + FlutterWindow window(&run_loop, project); + Win32Window::Point origin(10, 10); + Win32Window::Size size(1280, 720); + if (!window.CreateAndShow(L"tip_003_popup_card", origin, size)) { + return EXIT_FAILURE; + } + window.SetQuitOnClose(true); + + run_loop.Run(); + + ::CoUninitialize(); + return EXIT_SUCCESS; +} diff --git a/tip_003_popup_card/windows/runner/resource.h b/tip_003_popup_card/windows/runner/resource.h new file mode 100644 index 0000000..66a65d1 --- /dev/null +++ b/tip_003_popup_card/windows/runner/resource.h @@ -0,0 +1,16 @@ +//{{NO_DEPENDENCIES}} +// Microsoft Visual C++ generated include file. +// Used by Runner.rc +// +#define IDI_APP_ICON 101 + +// Next default values for new objects +// +#ifdef APSTUDIO_INVOKED +#ifndef APSTUDIO_READONLY_SYMBOLS +#define _APS_NEXT_RESOURCE_VALUE 102 +#define _APS_NEXT_COMMAND_VALUE 40001 +#define _APS_NEXT_CONTROL_VALUE 1001 +#define _APS_NEXT_SYMED_VALUE 101 +#endif +#endif diff --git 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tySWtj{oF3N9@_;i*Fv5S)9x^z=nlWP>jpp-9)52ZmLVA=i*%6g{{fxOO~wEK literal 0 HcmV?d00001 diff --git a/tip_003_popup_card/windows/runner/run_loop.cpp b/tip_003_popup_card/windows/runner/run_loop.cpp new file mode 100644 index 0000000..2d6636a --- /dev/null +++ b/tip_003_popup_card/windows/runner/run_loop.cpp @@ -0,0 +1,66 @@ +#include "run_loop.h" + +#include + +#include + +RunLoop::RunLoop() {} + +RunLoop::~RunLoop() {} + +void RunLoop::Run() { + bool keep_running = true; + TimePoint next_flutter_event_time = TimePoint::clock::now(); + while (keep_running) { + std::chrono::nanoseconds wait_duration = + std::max(std::chrono::nanoseconds(0), + next_flutter_event_time - TimePoint::clock::now()); + ::MsgWaitForMultipleObjects( + 0, nullptr, FALSE, static_cast(wait_duration.count() / 1000), + QS_ALLINPUT); + bool processed_events = false; + MSG message; + // All pending Windows messages must be processed; MsgWaitForMultipleObjects + // won't return again for items left in the queue after PeekMessage. + while (::PeekMessage(&message, nullptr, 0, 0, PM_REMOVE)) { + processed_events = true; + if (message.message == WM_QUIT) { + keep_running = false; + break; + } + ::TranslateMessage(&message); + ::DispatchMessage(&message); + // Allow Flutter to process messages each time a Windows message is + // processed, to prevent starvation. + next_flutter_event_time = + std::min(next_flutter_event_time, ProcessFlutterMessages()); + } + // If the PeekMessage loop didn't run, process Flutter messages. + if (!processed_events) { + next_flutter_event_time = + std::min(next_flutter_event_time, ProcessFlutterMessages()); + } + } +} + +void RunLoop::RegisterFlutterInstance( + flutter::FlutterEngine* flutter_instance) { + flutter_instances_.insert(flutter_instance); +} + +void RunLoop::UnregisterFlutterInstance( + flutter::FlutterEngine* flutter_instance) { + flutter_instances_.erase(flutter_instance); +} + +RunLoop::TimePoint RunLoop::ProcessFlutterMessages() { + TimePoint next_event_time = TimePoint::max(); + for (auto instance : flutter_instances_) { + std::chrono::nanoseconds wait_duration = instance->ProcessMessages(); + if (wait_duration != std::chrono::nanoseconds::max()) { + next_event_time = + std::min(next_event_time, TimePoint::clock::now() + wait_duration); + } + } + return next_event_time; +} diff --git a/tip_003_popup_card/windows/runner/run_loop.h b/tip_003_popup_card/windows/runner/run_loop.h new file mode 100644 index 0000000..000d362 --- /dev/null +++ b/tip_003_popup_card/windows/runner/run_loop.h @@ -0,0 +1,40 @@ +#ifndef RUNNER_RUN_LOOP_H_ +#define RUNNER_RUN_LOOP_H_ + +#include + +#include +#include + +// A runloop that will service events for Flutter instances as well +// as native messages. +class RunLoop { + public: + RunLoop(); + ~RunLoop(); + + // Prevent copying + RunLoop(RunLoop const&) = delete; + RunLoop& operator=(RunLoop const&) = delete; + + // Runs the run loop until the application quits. + void Run(); + + // Registers the given Flutter instance for event servicing. + void RegisterFlutterInstance( + flutter::FlutterEngine* flutter_instance); + + // Unregisters the given Flutter instance from event servicing. + void UnregisterFlutterInstance( + flutter::FlutterEngine* flutter_instance); + + private: + using TimePoint = std::chrono::steady_clock::time_point; + + // Processes all currently pending messages for registered Flutter instances. + TimePoint ProcessFlutterMessages(); + + std::set flutter_instances_; +}; + +#endif // RUNNER_RUN_LOOP_H_ diff --git a/tip_003_popup_card/windows/runner/runner.exe.manifest b/tip_003_popup_card/windows/runner/runner.exe.manifest new file mode 100644 index 0000000..c977c4a --- /dev/null +++ b/tip_003_popup_card/windows/runner/runner.exe.manifest @@ -0,0 +1,20 @@ + + + + + PerMonitorV2 + + + + + + + + + + + + + + + diff --git a/tip_003_popup_card/windows/runner/utils.cpp b/tip_003_popup_card/windows/runner/utils.cpp new file mode 100644 index 0000000..d19bdbb --- /dev/null +++ b/tip_003_popup_card/windows/runner/utils.cpp @@ -0,0 +1,64 @@ +#include "utils.h" + +#include +#include +#include +#include + +#include + +void CreateAndAttachConsole() { + if (::AllocConsole()) { + FILE *unused; + if (freopen_s(&unused, "CONOUT$", "w", stdout)) { + _dup2(_fileno(stdout), 1); + } + if (freopen_s(&unused, "CONOUT$", "w", stderr)) { + _dup2(_fileno(stdout), 2); + } + std::ios::sync_with_stdio(); + FlutterDesktopResyncOutputStreams(); + } +} + +std::vector GetCommandLineArguments() { + // Convert the UTF-16 command line arguments to UTF-8 for the Engine to use. + int argc; + wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc); + if (argv == nullptr) { + return std::vector(); + } + + std::vector command_line_arguments; + + // Skip the first argument as it's the binary name. + for (int i = 1; i < argc; i++) { + command_line_arguments.push_back(Utf8FromUtf16(argv[i])); + } + + ::LocalFree(argv); + + return command_line_arguments; +} + +std::string Utf8FromUtf16(const wchar_t* utf16_string) { + if (utf16_string == nullptr) { + return std::string(); + } + int target_length = ::WideCharToMultiByte( + CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string, + -1, nullptr, 0, nullptr, nullptr); + if (target_length == 0) { + return std::string(); + } + std::string utf8_string; + utf8_string.resize(target_length); + int converted_length = ::WideCharToMultiByte( + CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string, + -1, utf8_string.data(), + target_length, nullptr, nullptr); + if (converted_length == 0) { + return std::string(); + } + return utf8_string; +} diff --git a/tip_003_popup_card/windows/runner/utils.h b/tip_003_popup_card/windows/runner/utils.h new file mode 100644 index 0000000..3879d54 --- /dev/null +++ b/tip_003_popup_card/windows/runner/utils.h @@ -0,0 +1,19 @@ +#ifndef RUNNER_UTILS_H_ +#define RUNNER_UTILS_H_ + +#include +#include + +// Creates a console for the process, and redirects stdout and stderr to +// it for both the runner and the Flutter library. +void CreateAndAttachConsole(); + +// Takes a null-terminated wchar_t* encoded in UTF-16 and returns a std::string +// encoded in UTF-8. Returns an empty std::string on failure. +std::string Utf8FromUtf16(const wchar_t* utf16_string); + +// Gets the command line arguments passed in as a std::vector, +// encoded in UTF-8. Returns an empty std::vector on failure. +std::vector GetCommandLineArguments(); + +#endif // RUNNER_UTILS_H_ diff --git a/tip_003_popup_card/windows/runner/win32_window.cpp b/tip_003_popup_card/windows/runner/win32_window.cpp new file mode 100644 index 0000000..c10f08d --- /dev/null +++ b/tip_003_popup_card/windows/runner/win32_window.cpp @@ -0,0 +1,245 @@ +#include "win32_window.h" + +#include + +#include "resource.h" + +namespace { + +constexpr const wchar_t kWindowClassName[] = L"FLUTTER_RUNNER_WIN32_WINDOW"; + +// The number of Win32Window objects that currently exist. +static int g_active_window_count = 0; + +using EnableNonClientDpiScaling = BOOL __stdcall(HWND hwnd); + +// Scale helper to convert logical scaler values to physical using passed in +// scale factor +int Scale(int source, double scale_factor) { + return static_cast(source * scale_factor); +} + +// Dynamically loads the |EnableNonClientDpiScaling| from the User32 module. +// This API is only needed for PerMonitor V1 awareness mode. +void EnableFullDpiSupportIfAvailable(HWND hwnd) { + HMODULE user32_module = LoadLibraryA("User32.dll"); + if (!user32_module) { + return; + } + auto enable_non_client_dpi_scaling = + reinterpret_cast( + GetProcAddress(user32_module, "EnableNonClientDpiScaling")); + if (enable_non_client_dpi_scaling != nullptr) { + enable_non_client_dpi_scaling(hwnd); + FreeLibrary(user32_module); + } +} + +} // namespace + +// Manages the Win32Window's window class registration. +class WindowClassRegistrar { + public: + ~WindowClassRegistrar() = default; + + // Returns the singleton registar instance. + static WindowClassRegistrar* GetInstance() { + if (!instance_) { + instance_ = new WindowClassRegistrar(); + } + return instance_; + } + + // Returns the name of the window class, registering the class if it hasn't + // previously been registered. + const wchar_t* GetWindowClass(); + + // Unregisters the window class. Should only be called if there are no + // instances of the window. + void UnregisterWindowClass(); + + private: + WindowClassRegistrar() = default; + + static WindowClassRegistrar* instance_; + + bool class_registered_ = false; +}; + +WindowClassRegistrar* WindowClassRegistrar::instance_ = nullptr; + +const wchar_t* WindowClassRegistrar::GetWindowClass() { + if (!class_registered_) { + WNDCLASS window_class{}; + window_class.hCursor = LoadCursor(nullptr, IDC_ARROW); + window_class.lpszClassName = kWindowClassName; + window_class.style = CS_HREDRAW | CS_VREDRAW; + window_class.cbClsExtra = 0; + window_class.cbWndExtra = 0; + window_class.hInstance = GetModuleHandle(nullptr); + window_class.hIcon = + LoadIcon(window_class.hInstance, MAKEINTRESOURCE(IDI_APP_ICON)); + window_class.hbrBackground = 0; + window_class.lpszMenuName = nullptr; + window_class.lpfnWndProc = Win32Window::WndProc; + RegisterClass(&window_class); + class_registered_ = true; + } + return kWindowClassName; +} + +void WindowClassRegistrar::UnregisterWindowClass() { + UnregisterClass(kWindowClassName, nullptr); + class_registered_ = false; +} + +Win32Window::Win32Window() { + ++g_active_window_count; +} + +Win32Window::~Win32Window() { + --g_active_window_count; + Destroy(); +} + +bool Win32Window::CreateAndShow(const std::wstring& title, + const Point& origin, + const Size& size) { + Destroy(); + + const wchar_t* window_class = + WindowClassRegistrar::GetInstance()->GetWindowClass(); + + const POINT target_point = {static_cast(origin.x), + static_cast(origin.y)}; + HMONITOR monitor = MonitorFromPoint(target_point, MONITOR_DEFAULTTONEAREST); + UINT dpi = FlutterDesktopGetDpiForMonitor(monitor); + double scale_factor = dpi / 96.0; + + HWND window = CreateWindow( + window_class, title.c_str(), WS_OVERLAPPEDWINDOW | WS_VISIBLE, + Scale(origin.x, scale_factor), Scale(origin.y, scale_factor), + Scale(size.width, scale_factor), Scale(size.height, scale_factor), + nullptr, nullptr, GetModuleHandle(nullptr), this); + + if (!window) { + return false; + } + + return OnCreate(); +} + +// static +LRESULT CALLBACK Win32Window::WndProc(HWND const window, + UINT const message, + WPARAM const wparam, + LPARAM const lparam) noexcept { + if (message == WM_NCCREATE) { + auto window_struct = reinterpret_cast(lparam); + SetWindowLongPtr(window, GWLP_USERDATA, + reinterpret_cast(window_struct->lpCreateParams)); + + auto that = static_cast(window_struct->lpCreateParams); + EnableFullDpiSupportIfAvailable(window); + that->window_handle_ = window; + } else if (Win32Window* that = GetThisFromHandle(window)) { + return that->MessageHandler(window, message, wparam, lparam); + } + + return DefWindowProc(window, message, wparam, lparam); +} + +LRESULT +Win32Window::MessageHandler(HWND hwnd, + UINT const message, + WPARAM const wparam, + LPARAM const lparam) noexcept { + switch (message) { + case WM_DESTROY: + window_handle_ = nullptr; + Destroy(); + if (quit_on_close_) { + PostQuitMessage(0); + } + return 0; + + case WM_DPICHANGED: { + auto newRectSize = reinterpret_cast(lparam); + LONG newWidth = newRectSize->right - newRectSize->left; + LONG newHeight = newRectSize->bottom - newRectSize->top; + + SetWindowPos(hwnd, nullptr, newRectSize->left, newRectSize->top, newWidth, + newHeight, SWP_NOZORDER | SWP_NOACTIVATE); + + return 0; + } + case WM_SIZE: { + RECT rect = GetClientArea(); + if (child_content_ != nullptr) { + // Size and position the child window. + MoveWindow(child_content_, rect.left, rect.top, rect.right - rect.left, + rect.bottom - rect.top, TRUE); + } + return 0; + } + + case WM_ACTIVATE: + if (child_content_ != nullptr) { + SetFocus(child_content_); + } + return 0; + } + + return DefWindowProc(window_handle_, message, wparam, lparam); +} + +void Win32Window::Destroy() { + OnDestroy(); + + if (window_handle_) { + DestroyWindow(window_handle_); + window_handle_ = nullptr; + } + if (g_active_window_count == 0) { + WindowClassRegistrar::GetInstance()->UnregisterWindowClass(); + } +} + +Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept { + return reinterpret_cast( + GetWindowLongPtr(window, GWLP_USERDATA)); +} + +void Win32Window::SetChildContent(HWND content) { + child_content_ = content; + SetParent(content, window_handle_); + RECT frame = GetClientArea(); + + MoveWindow(content, frame.left, frame.top, frame.right - frame.left, + frame.bottom - frame.top, true); + + SetFocus(child_content_); +} + +RECT Win32Window::GetClientArea() { + RECT frame; + GetClientRect(window_handle_, &frame); + return frame; +} + +HWND Win32Window::GetHandle() { + return window_handle_; +} + +void Win32Window::SetQuitOnClose(bool quit_on_close) { + quit_on_close_ = quit_on_close; +} + +bool Win32Window::OnCreate() { + // No-op; provided for subclasses. + return true; +} + +void Win32Window::OnDestroy() { + // No-op; provided for subclasses. +} diff --git a/tip_003_popup_card/windows/runner/win32_window.h b/tip_003_popup_card/windows/runner/win32_window.h new file mode 100644 index 0000000..17ba431 --- /dev/null +++ b/tip_003_popup_card/windows/runner/win32_window.h @@ -0,0 +1,98 @@ +#ifndef RUNNER_WIN32_WINDOW_H_ +#define RUNNER_WIN32_WINDOW_H_ + +#include + +#include +#include +#include + +// A class abstraction for a high DPI-aware Win32 Window. Intended to be +// inherited from by classes that wish to specialize with custom +// rendering and input handling +class Win32Window { + public: + struct Point { + unsigned int x; + unsigned int y; + Point(unsigned int x, unsigned int y) : x(x), y(y) {} + }; + + struct Size { + unsigned int width; + unsigned int height; + Size(unsigned int width, unsigned int height) + : width(width), height(height) {} + }; + + Win32Window(); + virtual ~Win32Window(); + + // Creates and shows a win32 window with |title| and position and size using + // |origin| and |size|. New windows are created on the default monitor. Window + // sizes are specified to the OS in physical pixels, hence to ensure a + // consistent size to will treat the width height passed in to this function + // as logical pixels and scale to appropriate for the default monitor. Returns + // true if the window was created successfully. + bool CreateAndShow(const std::wstring& title, + const Point& origin, + const Size& size); + + // Release OS resources associated with window. + void Destroy(); + + // Inserts |content| into the window tree. + void SetChildContent(HWND content); + + // Returns the backing Window handle to enable clients to set icon and other + // window properties. Returns nullptr if the window has been destroyed. + HWND GetHandle(); + + // If true, closing this window will quit the application. + void SetQuitOnClose(bool quit_on_close); + + // Return a RECT representing the bounds of the current client area. + RECT GetClientArea(); + + protected: + // Processes and route salient window messages for mouse handling, + // size change and DPI. Delegates handling of these to member overloads that + // inheriting classes can handle. + virtual LRESULT MessageHandler(HWND window, + UINT const message, + WPARAM const wparam, + LPARAM const lparam) noexcept; + + // Called when CreateAndShow is called, allowing subclass window-related + // setup. Subclasses should return false if setup fails. + virtual bool OnCreate(); + + // Called when Destroy is called. + virtual void OnDestroy(); + + private: + friend class WindowClassRegistrar; + + // OS callback called by message pump. Handles the WM_NCCREATE message which + // is passed when the non-client area is being created and enables automatic + // non-client DPI scaling so that the non-client area automatically + // responsponds to changes in DPI. All other messages are handled by + // MessageHandler. + static LRESULT CALLBACK WndProc(HWND const window, + UINT const message, + WPARAM const wparam, + LPARAM const lparam) noexcept; + + // Retrieves a class instance pointer for |window| + static Win32Window* GetThisFromHandle(HWND const window) noexcept; + + bool quit_on_close_ = false; + + // window handle for top level window. + HWND window_handle_ = nullptr; + + // window handle for hosted content. + HWND child_content_ = nullptr; +}; + +#endif // RUNNER_WIN32_WINDOW_H_